Machine for making ring-shaped barb-pieces



Nrrnn STATES PATENT Oriana.

HIRAM REYNOLDS, OF MITOHELLVILLE, ASSIGNOB TO GEORGE NEIL AND G. F.AURINGER, F MARSHALLTOWN, IOWA.

MACHINE FOR MAKING RING-SHAPED BARB-PIECES.

SPECIFICATION forming part of Letters Patent No. 236,176, dated January4, 1881.

Application filed July 23, 1880. (Model) To all whom it may concern:

Be it known that I, HIRAM REYNOLDS, of Mitchellville, in the county ofPolk and State of Iowa, have invented a Machine for Making Ring-ShapedBarb-Pieces, of which the following is a specification.

The object of my invention is to manufacture, by means of automaticmachinery, the ring-shaped barb-piece shown and described in the UnitedStatesPatentNo.203,779,issued May 14, 1878.

It consists in wire-moving.mechanism, wirecutting mechanism, astaple-formin g device, a ring-forming device, and a wire-twistingdevice, formed, arranged, and combined on a suitable base, ashereinafter fully set forth.

Figure l of my drawings is a top view of my machine. Fig. 2 is a sideview. Fig.'3is a detail view of the wire-cutting mechanism and thering-forming device. Fig. 4 is a detail view showing the combination ofthe wiretwisting device and the driving-shaft. Fig.5 is a perspectiveview of a ring-shaped barbpiece produced by the machine. Fig. 6 is a 25'detail view showing the staple-forming, ringforming, and barb-twistingdevices. Fig. 7 is a detail View showing the cutting-knife and slot inwhich it moves. Jointly considered, these figures clearly illustrate theconstruction and operation of my complete invention.

A represents the base of my machine, in the form of an oblong plate,that is preferably made of cast-iron. It may be fixed upon a bench ormounted upon legs in any suitable way.

B is a driving-shaft, mounted in bearings formed on or fixed to theupper side of A.

0 represents a crank or wheel by means of which power is applied to theshaft B to oper- 0 ate the complete machine.

A is a plate extending laterally from the plate A near its end, to forma base for my wire moving and feeding mechanism.

' d is a sliding block fitted to move in bear: ings formed in orattached to the top side of the extension A 6 is a pawl pivoted to thetop sideand end of the sliding block 61, to gripe a wire that is placedunderneath it to be clamped to the block and moved forward with theblock, as required, to advance the wire at regularintervals to thecutting mechanism.

f is a rock-shaft mounted in bearings formed on or attached to theextensiouplate A It has an arm or crank, f, at one end, that is 5flexibly connected with the pawl e and the sliding block (1 by means ofrigid links f.

g is a slotted arm on the opposite end of the rock-shaftf, by means ofwhich the shaft is rocked at regular intervals to impart a recip- 6orocating motion to the sliding block d.

g is a crank on the end of the drivingshaft B.

g is a pitman that connects the slotted arm and bridle g and the crankg, as required, to transmit power and motion from the drivingshaft tothe wire moving and feeding mechanism.

h is a triangular-shaped plate and knife carrier, pivoted to the uprightbearing that supports one end of the driving-shaft B, as shown in Fig.3. h is a knife fixed to its lower corner.

h is an angular or two-faced cam formed in the upper end of the plate Itin such a manner that it will be engaged by the lug 2' projecting fromthe driving-shaft B, and thereby alternately raised and depressed, asrequired, to operate the knife h. I am aware that hammers have beenoperated by a similar mechanical movement; but my manner of forming aplate adapted to carry a knife and combining it with operatingmechanismis novel and advantageous in cutting barb-pieces.

J is a plate that has a groove in its under side to direct the wire fromthe feed mechanism to the cutting mechanism. It is fixed to the base A,and has a notch at its end and side corresponding with the edge of theknife h, that descends through said notch and extends diagonally acrossthe wire, as required, 0 to out off pointed barb-pieces.

k is a rock-shaft. mounted on the base A by means of a suitable bearingin line with the cutting and feeding mechanism. It has a finger orring-former, 70, extending downward 5 to engage the barb-pieces, (thatare cut from the continuous wire by the knife h,) and bend them asrequired to produce rings. 75" is a bent arm extending upward from therockshaft It to engage a cam, No. 1, on the driving-shaft B, asrequired, to transmit power and motion from the driving-shaft to theringforming device.

lis a pin projecting from the shaft-bearing to engage the arm k andrestrict its upward motion. Z is a crank on the opposite end of therock-shaft k.

l is a post fixed to the base A.

L is a spring extending from the top of the post 1 to the end of thecrank l in such a manner that in its normal position it will pull upwardon the crank Z, as required, to rock the shaft k and bring its fingerinto position to engage the straight barb-piece immediately after it iscut by means of the knife h.

m is a bifurcated bar,fixed to the base A in such a position relative tothe ring-former k that the ends of its prongs will form bearings for theends of the straight barb-pieces, while the ring-former It" presses thecenter of the barbpiece between the prongs and bends the pieces intostaple shape and partially around the ringformer, in such a manner thatthe parallel and pointed ends of the staple-shaped piece will extendtoward the head of the twisting device. The prongs have notches in theirends to engage the wire barb-piece when it is straight, and grooves intheir inside faces to direct and hold it while it is being bent intostaple-shape.

m is a slot in the base A, within which my barb-twister is mounted.

a is a shaft that has a flattened head, and is mounted in suitablebearingsin the slot m.

a is a pinion fixed on the shaft 02.

a is a rack of segmental form, pivoted to a post rising from the base A,in such a manner that the rack can be vibrated and engage the pinion a,as required, to rotate the wiretwisting shaft or at regular intervals.

0 is a disk fixed to the driving-shaft B in an eccentric position, toperform the function of a cam. It fits into a ring, 0, that has an arm,0", extending outward, to be connected with an arm, 0', that extendsfrom the pivoted rack n. The rotary motion of the disk 0 on the shaft B,thus flexibly connected with the rack a, will vibrate the rack atregular intervals, as required, to rotate the shaft a to twist theprongs of staple-shaped barb-piece together to produce a ring-shapedbarb-piece.

r is a coiled spring, fixed on the shaft a in such a manner that itwill, in its normal condition, hold the shaft a away from the wirebarb-pieces.

s is a cam fixed on the driving-shaft B, to engage a collar, t, on theshaft a, and thereby impart a longitudinal movement to the rotatingshaft and barb-twister n at regular intervals, as required, to followthe vibrating ringformer k, and to come into contact with the prongs ofthe barb-piece after it is bent around the said ring-former. A stud andanti-friction roller on the collar t facilitates the longitudinalmovement of the twisting device. Projections on the flattened end orhead of the shaft and twister n engage the prongs of the barbpiece. Oneof said projections lies over one leg of the staple and the otherprojection under the other leg, as shown in Fig. 6, and as required tobend said legs out at right angles to the axis of the twister at thesame time that they are twisted together by their bearing against therear portion of the ring-former; and when the ends of the barb-piece arethus twisted together the ring-former 7c and the twister n, actuated bythe springs l and aresume their normal positions, and the completering-shaped barb piece is allowed to drop through the slot in the baseA.

It is obvious from the description of the various groups of operatingdevices and their various functions that they will act in concert toform a complete ring-shaped barb-piece at every revolution of thedriving-shaft, from which intermittent motions are imparted to thevarious operating parts at regular intervals, and that those peculiarbarb-pieces can be automatically and rapidly produced by my machine at anominal cost.

I claim as my invention- 1. In a machine for making fence-barb pieces,the combination of the shaft B, having a cam, i, the pivoted plate h,carrying a knife, h, and having a cam, h, and the plate J, having agroove to direct a wire to the knife, substantially as shown anddescribed, for the purposes specified.

2. The wire-feeding mechanism d cfff g g g, the wire-cutting mechanism hh h, and the wire and knife directing plate J, arranged and combinedsubstantially as shown and described, for the purposes specified.

3. The staple-forming device composed of the rock-shaft k having afinger, an arm, 70', and a crank, l, the spring l, the shaft B, having acam, No. 1, and the bifurcated bar on, substantially as shown anddescribed, for the purposes specified.

4. The barb-twisting device composed of the sliding shaft n, havingprojections on its flattened head, the pinion a, the combined collar andstud t, the spring 1", the shaft B, having a cam, s, and the devices a"0 0 0 0', substantially as shown and described, for the purposesspecified.

5. The staple-forming device k 70 70 lm, in combination with thedriving-shaft B, having a cam, No. 1, substantially as shown anddescribed, for the purposes specified.

6. The combination of the wire-twisting device a a r t, the shaft B,having cams 0 and s, the ring 0, having an arm, 0", and the pivoted rackn, having an arm, 0, substantially as shown and described, for thepurposes specified.

7. A machine adapted to form ring-shaped and. 0 on the shaft B, the ring0, having an barb-pieces composed of the following elearm, 0, and thepivoted rack n, having an ments, to wit: a driving-shaft, B, mounteda-rm,0,substantiallyas shown and described. 10

upon a suitable base, a Wireffeeding mechanr HIRAM REYNOLDS. 5 ism,awire-outting mechanism, h h h i, a sta- Witnesses: plea-forming device,is k k l m, a wire-twisting W. W. HEDGES,

device, n n m 1' t, the operating-cams No. 1, s, 4 G. H. ALELER.

